login/utmp-private.h

   1 /* Internal definitions and declarations for UTMP functions.
   2    Copyright (C) 1996-2022 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, see
  17    <https://www.gnu.org/licenses/>.  */
  18
  19 #ifndef _UTMP_PRIVATE_H
  20 #define _UTMP_PRIVATE_H 1
  21
  22 #include <utmp.h>
  23 #include <libc-lock.h>
  24
  25 /* These functions check for initialization, but not perform any
  26    locking.  */
  27 int __libc_setutent (void) attribute_hidden;
  28 int __libc_getutent_r (struct utmp *, struct utmp **) attribute_hidden;
  29 int __libc_getutid_r (const struct utmp *, struct utmp *, struct utmp **)
  30   attribute_hidden;
  31 int __libc_getutline_r (const struct utmp *, struct utmp *, struct utmp **)
  32   attribute_hidden;
  33 struct utmp *__libc_pututline (const struct utmp *) attribute_hidden;
  34 void __libc_endutent (void) attribute_hidden;
  35 int __libc_updwtmp (const char *, const struct utmp *) attribute_hidden;
  36
  37 /* Current file name.  */
  38 extern const char *__libc_utmp_file_name attribute_hidden;
  39
  40 /* Locks access to the global data.  */
  41 __libc_lock_define (extern, __libc_utmp_lock attribute_hidden)
  42
  43
  44 #endif /* utmp-private.h */